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105 papers · 1 filter
Analytical approach to chiral symmetry breaking in Minkowsky space
Pedro Bicudo
The mass gap equation for spontaneous chiral symmetry breaking is studied directly in Minkowsky space. In hadronic physics, spontaneous chiral symmetry breaking is crucial to gener…
Quark mixing from softly broken symmetries
W. Grimus, L. Lavoura
Quark flavor mixing may originate in the soft breaking of horizontal symmetries. Those symmetries, which in the simplest case are three family U(1) groups, are obeyed only by the d…
Meson-Meson Interactions and Resonances in the 't Hooft Model
Z. Batiz, M. T. Pena, A. Stadler
We studied meson-meson interactions using the 't Hooft model, which represents QCD in 1+1 dimensions and assumes a large number of colors (). The dominant interactions in this…
Scalar-gravitational perturbations and quasinormal modes in the five dimensional Schwarzschild black hole
Vitor Cardoso, Jose' P. S. Lemos, Shijun Yoshida
We calculate the quasinormal modes (QNMs) for gravitational perturbations of the Schwarzschild black hole in the five dimensional (5D) spacetime with a continued fraction method. F…
Phenomenological Tests of Supersymmetric A_4 Family Symmetry Model of Neutrino Mass
M. Hirsch, J. C. Romao, S. Skadhauge +2
Recently Babu, Ma and Valle proposed a model of quark and lepton mixing based on symmetry. Within this model the lepton and slepton mixings are intimately related. We perform…
Information-theoretic determination of ponderomotive forces
Mario J. Pinheiro
From the equilibrium condition applied to an isolated thermodynamic system of electrically charged particles and the fundamental equation of thermodynamics ($dU = T dS-(\mat…